At 4:46 PM -0400 4/10/07, David T. Ashley wrote:
I'd like to have a table in MySQL with the key field being a 12-character
text string consisting of digits and upper-case letters (minus the vowels
and Y, to prevent accidental bad words), i.e. something like:
XM39C6B4...
When I do queries and get back result sets sorted on this text string, is it
always safe to assume that:
a)Digits come before letters?
b)Letters are in ascending order, i.e. A before B, B before C, etc.?
Character orderings are entirely determined by the collation that you
choose. So you should choose a collation the produces the ordering
you want. :-)
To be conservative, should I set collation order?
Yep.
--
Paul DuBois, MySQL Documentation Team
Madison, Wisconsin, USA
MySQL AB, www.mysql.com
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